Question: A heavily insulated cylinder/piston contains ammonia at 1200 kPa, 60C. The piston is moved, expanding the ammonia in a reversible process until the temperature is

A heavily insulated cylinder/piston contains ammonia at 1200 kPa, 60°C. The piston is moved, expanding the ammonia in a reversible process until the temperature is −20°C. During the process 600 kJ of work is given out by the ammonia. What was the initial volume of the cylinder?

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